This is the first article in a series about new Perl 5.10 features. I'll try to
write one article each week, but you'll never know.

This first article is about the new builtin function say. The say function
is similar to print in how it works. Whenever you want to use say or other
features from Perl 5.10, you need to declare that you want to use these
features.

use 5.010;

After you have done that you can use the function like this.

say 'Hello world';

This will print the text 'Hello, world' to STDOUT and add a newline "\n"
after it, equal to:

print "Hello, world\n";

This doesn't seem like a big feature, but it will also help with the
following.

say for @lines;

This is instead of

print "$_\n" for @lines;

The say function removes some complexity in this example. You don't have
to add the newline anymore.